Tag: Antarctic

Global temperatures have risen by 1 degree Celsius (nearly 34 degrees Fahrenheit) in the past 150 years, and one scientist says a doubling of that could unleash catastrophic sea-level rise this century.

New research shows that iron fertilization stimulates growth of the plankton that help transport carbon dioxide to the deep ocean—but swells the number of small creatures who feed on plankton and whose shells put CO2 back into the atmosphere.

The U.N. panel of climate scientists says some consequences of global warming will become irreversible unless greenhouse gas emissions fall to zero by the end of the century—but latest research suggests the reality may be even more urgent than that.

Although new research discounts the likelihood of a two-meter sea rise this century, the predicted impacts of global warming are still bad news for the many millions of people living at or near sea level.

Forty years ago, climate change was not even on the agenda of green campaigners—but now a veteran of those pioneering days speaks out about the danger of neglecting other issues that threaten the planet.

Computer simulations reaching back deep into the last Ice Age have enabled scientists to put a historic perspective on how even small variations in the climate system can lead to dramatic temperature change.

Researchers in the U.S. say a landmark census that shows one species of penguin is thriving while other populations are in rapid decline offers new insight into how climate change is affecting Antarctica.

The habitat of Antarctic fauna clinging to the boulders in shallow waters is being destroyed by the scouring effect of icebergs that are increasingly breaking free from ice shelves as a result of global warming.

Unusual weather ripped a sizable hole in the ozone layer above the Arctic last winter, exposing people in northern Russia, parts of Greenland and Norway to high levels of UV radiation. Human activity did not cause the hole’s sudden appearance, scientists said in a report released Monday. (more)